Liquid-dispensing apparatus



May 5, 1925. 1,536,415

J. N. BURNO LIQUID DI SPENSING APPARATUS Filed April 19, 1922 3Sheets-Sheet l May 5, 1925. 1,536,475

J. N. BURNO LIQUID DISPENSING APPARATUS Filed April 19, 1922 3Sheets-Sheet 2 $60" ami 14 f5 1725 IZ 1a t n 65 27 l s 1 l a3 [i 11 5455 48 fl 50 5/4 45 :l s j f 40 5j Y 7.7. 32 w Q -5 59 38 49 50 Suvafntozy `LMMVQZMM Patented May 5, 1925.

tlNiTED STATES 1,536,475: PATENT ern-or.

JGS'EPH N.'BUR;NO,;OF; CHIC\AGO, ILLINQIS, .ASSIGNOR T0 lBUBE &WESTER-M'ANN, A CORPORATION OSF NEW YORK.

areuID-DISPENSING APPARATUS- Applialtignnfledprl V1,9, Serial No.555,542.

To all whom v15 Mayte/Hoera.'

Be it;, ln' 1oj wn that l, vJosnrn N. Binario. a citizen of vthe UnitedStateedand ,aresident ofhicago, county of Cook, State ot illinois, haveinvented certain new and useful IQPPUVGXUQDS in LQUdTDiSPQHSQgApparatus, Qf which the 'following ,is ,Specicetn- This ,inventionrelates Yto Vliquid dispensing apparatusand ,has partieular referencetov such apparatus ofthe coin controlled typei An `important object ofthe invention is toI -provide in a device of the class inentioneddameans whereby the presence of a coin of a given denomination willlaffect a positive and reliableeperation between severahcooperativeelements of the mechanism to render the saine operative for a sut'rcientlength ottime to permit the apparatus as a wholeto properlyfunction.

,A further object is toxso construct `the various .elements enteringintothe apparatus emhedying in" invention that lthe same may he 4renderedreliable in operation, easily,- assemhled and inexpensive tomanufacture.

Other ,objects and certain advantages of the invention ,wigllbecoineapparent from the Vfollowing description v when staken in connectionAwith the ,accompanying drawingsl in ,which Figure 1 is a side`elevation of ythe apparatus Ashowing the several cooperative elenlentsthereof in their respectivenprmal positions.

VFigure 2 ,is a4 .View similar' to that o't Figure 1 illustrating theseveral cooperative elements as having been moved slightly ont of theirrespective normal positions.

Figure 3ds a view siinilarto, that of Fig ure 2 showing thek severalcooperative elements Las having been ,moved slightlyv further vtowardr,their respective operating limits.

.Figure 4 is a view similar to thatof Figure 3 illustrating the severalcooperative elements as having nearly reached their respective limits,over a given cycle of operation.

Figure 5. is asectional view taken on line 5.-"5 of Figure 1.

,Figure 6, is a .top plan view of the device with Ivitszseverallcooperative elements positionedashshown in Figure 1.

1n ,the drawings wherein is shown what l at present consider theypreferred form of my invention the numeral 5 indieatesia hase, to whichis secured a pair erstandards A6, connected together hyaneans of atransversely disposed har 7 'and provided with diverging arms 8 and 9..Upon .the har Tsthere isdisposed a plate 10, to which isy connected adispensing nozzle llldivided :is by means of a. wall 12, into chambers Kand 14. with which coffee and milk supply pipes 1rand 16 respectively,are Iadapted to communicate. The chambers 13.4 and 14 are so formed attheirI lower ends as to provide seats 1'? .and 18 upon which the loweror closed end of cup-shaped valves 19 and 20 are adapted to seat. Thesevalves are elongated, as shown, and are provided with ports 21 and 22which areadapted to coinmunicate the interior of the valves with thespace afforded between themselves and the Walls of the chambers. I havediscovered rthat Vby constructing the valves ,as shown the period oftheir operation may'lhe maintained uniform regardless of what Athe headVIofmilk and coee at vtheir lrespectivelsources might be. Beneath theclosed ends of the yvalves 19 and 20 thereis provided a yoke 23, theupturned ends Aof which extend through the outlet openings 24- and 25 ofthe chambers l13 and 14respcctively. 'Fo ythe yoke 23 intermediate itsends there is connected a valve actuatingrod which extends. upwardlythrough the divisional wall 12 andis connected t a valve actuating lever27 pivotally connected, as shown at 287 to a support 29.

At the upper end of the arrn 8 there is provided a pair of guide studs3() between which the outer end of combined coin guide and vactuatinglever 31 extends. This coin guide is provided, at its outer end, with ahead 32 having a coin entrance slot 33 formed therein. The coin guide 31.is guided not only by the studs butl also by means of a pin 3s'operating within a slot 35 formed in an odset port-ion 36 thereof. Itwill he noted that the slot 35, substantialigf' throughout its length,is straight hut at one end it is diverted to forni a cam face 37 whiehfunctions cooperatively with the stud to .Slightly lift the lower end ofthe guide ,31 when Ithe saine is retracted against the inluence of acoil spring one end of which is connected to the guide as shown at 39whereas the other end is suitably connected to a stationary anchor 40.To the guide 31, relatively near its lower end, there is connected anupwardly extending arm 41 to which is pivotally connected, as by meansof a pin 42, a pawl 43 which is free to swing in one direction butprevented from moving to Va vertical position when swinging in theopposite direction by means of a pin 44 carried by the arm 41. Thereason for the normally inclined position of the pawl 43 will beappreciated when considering the fact that the same is adapted tofunction as a cam under certain conditions as will hereinafter morereadily appear.

To the arm 9 there is pivotally connected a bell crank lever 45 theupper end of which is provided with a hook 46 the outer end of which iscurved as shown, in order that the same may, under certain conditions,beeasily lifted over the pin 44 which it is adapted to engage to preventoperation of the apparatus in the absence of a coin. It will be notedthat. the arm 45 is so shaped that when the coin, as shown at 47, isinserted the same will lieA intermediate the offset portion 48 of thearm and the lower end of theguide 31. It is obvious that byv Imoving theguide 31 outwardly against the inuenee of the spring 38 the lower endthereof will be lifted due to the coaction of the pin 34 with the camface 37 thereby swinging the arm 45 about its pivot from the positionshown in Figure 1 to that of Figure 2. As the arm 45 is lifted the guide31 is so moved as to release the coin 47 whereupon the arm 45 is allowedto drop to the position shown in Figure 3, it being checked in itsmovement by a stud 49 adapted tocontact with the upper end of the arm9.l Not only do-es the movement of the guide 31 against the influence ofthe spring 38 permit the coin 47 to be released, but it at the same timemoves the arm 41 a sufficient distance to clear Athe hook 46 as the arm45 descends from the position shown in Figures 1 and 2 to that of Figure3.

To the arm 9 there is suitably connected a pair of brackets 5() which attheir free ends are provided with a shaft 51 upon which is mounted abell crank lever 52 the lower arm of which is provided with a stud 53adaptedto ride up the inclined surface of the pawl 43 when the guide 31is moved outwardly against the ends of the spring 38. As, the stud 53rides up the inclined pawl 43 the bell crank lever 52 moves about theshaft 51 as a pivot thereby lifting a weight 54 which is carried by anarm 55 suitably connected to the bell crank lever 52 at the upper endthereof. As the bell crank lever 52 is thus moved a pin 56 carried atthe lower end thereof is permitted to move under a pivoted cam 57carried by the actuating lever 27. After the guide 31 has been moved asufficient distance to cause the stud 53 to ride over the upper end ofthe pawl 43 and the arm 41, the bell crank lever 52 is returned to itsnormal position by the weight 54. During its return movement the stud 56carried thereby travels up the inclined pivoted cam 57 and therebydepresses the arm 27. When the arm. 27 is depressed a weight 58 somewhatlighter than the weight 54 is lifted due to the fact -that this latternamed weight is carried by an arm 59 which is connected to the end ofthe arm 27 by means of a link 60. It might be well to remark that it isdue to the overbalanced co-ndition of the bell crank lever 52 withrespect to the operating lever 27 that the smaller weight is permittedto rise when the bell arm 59 is moved under the influence of the largerweight 54. As the operating arm 27 is moved through the instrumentalityof the bell crank lever 52, a piston 61 which is operatively connectedwith the arm 27 by means of a link 62, is moved downwardly within itscylinder 63 drawing in air through a port 64. This piston serves as acushioning means for the mechanism when the stud 56 upon return movementis relieved fro-m engagement with the upper face of the p-ivoted cam 57,the arm 27 being moved upon such disengagement by the infiuence of thesmaller weight 58. It may be remarked here that the arm 27 is free tomove upwardly underV the infiuence 'of the smaller weight 58 upondisengagement of the stud 56 from the cam 57 by reason of the fact thatthe stud upon completion of its return movement assumes a position atthe rear of the cam out. of the path of travel of the same. The valves19 and 2() are lifted when the operating arm 27 is moved downwardly bythe actlon of the bell crank lever and are retained` lifted from the'irrespective seats 17 and 18 an appreciable length of time to permit apredetermined amount of liquid to be dispensed. The length of time maybe varied to meet the various Conditions by adjusting the. weight 58upon its arm 59 to either increase or decrease its leverage, or theopening of the port` 64 may be varied as by means of a screw or the like65 having a tapered flattened side as shown. By moving the weight 58closer to the pivot connection of the arm 59 the length of time whichthe valves are maintained open may be increased, or by so adjusting thescrew 65 as to retard the escape of air from the cylinder 63 the piston61 may be retarded in its upward movement thus causing the valves 19 and2() to remain open for a longer length of time. lnasmuch as it isdesirable to guide the operating arm 27 in its vertical movement I haveprovided a pin 66 which projects an appreciable distance from the end ofthe arm 27 and is adapted to operate between a pair of verticallydisposed guides 67 which maintain the arm 2.7 in a vertical plane ofoperation.

Having thus described my invention. l claim:

l. A coin controlled liquid dispensing paratus having a conduit adaptedto cany a liquid, a valve controlling the flow of the liquid throughsaid conduit, a movable coin controlled operating member, mean,- 'ornormally locking said operating member in an inoperative position, meansoperable in the presence of a coin to release said operating member uponmovement thereofmeans operable upon a predetermined movement of saidmember to open said valve, means operable upon the opening of said valveto move the same to its closed position, means for retarding said valvein its movement to closed position, and means for vaiving the period ofoperation of said valve closing means.

2. A coin controlled liquid dispensing apparatus having a conduitadapted to carry liquid, a valve controlling the flow of the liquidthrough said conduit, a movable coin controlled operating member, meansfor normally locking said operating member in an inoperative position,means operable in the presence of a coin to release said operatingmember upon moveu'ient thereof, means operable upon a predeterminedmovement of said member to open said valve, an operating arm adapted tofunction upon the opening of said valve to move the same to closedposition,I and a Weight carried by said arm to facilitate its operation,said Weight being adapted to vary the period of operation of said valveclosing means.

8. A coin controlled liquid dispensing apparatus having a conduitadapted to carry a liquid, a valve controliing the flow of liquidthrough said conduit, a valve operating arm, a movable Coin controlledoperating member, means for normally locking said operating member in aninoperative position, said means being operative in the presence of acoin to release said operating member upon movement thereof, valveactuating means adapted to be engaged and moved by said operatingmember, said means being releasable from said operating member after apredetermined movement thereof, to depress said valve actuating arm,

4. A coin controlled liquid dispensing apparatus having a conduitadapted to carry a liquid, a valve controlling the ioiv of liquidthrough said conduit, a v'alve operating arm, a movable coin controlledoperating member, means for normalliY locking said operating member inan inoperative position, said means being operative in the presence of acoin to release said operatingr member upon movement thereof, valveactuating means adapted to be engaged and moved by said operatingmember, said means being releasable from said operating member after apredetermined movement thereof, to depress said valve o ierating arm,and means for returning said valve operating arm to a normal position.

A coin controlled liquid dispensing apparatus having a conduit adaptedto carry a liquid, a valve controlling the flow of liquid through saidconduit, a valve operating arm, a. movable coin controlled operatingmember, means for normally locking said operating member in aninoperative position, said means being operative in the presence of acoin to release said operating member upon movement thereof. valveactuating means adapted to be engaged and moved by said operating memberand releasable after a predetermined movement thereof, said valveactuating means being adapted to depress said valve operating arm uponmeans for returning said valve operating arm to normal position, andmeans for retarding the movement of said operating arm to its normalposition.

6. A coin controlled liquid dispensing apparatus having a conduitadapted to carry a liquid, a valve controlling the fioiv of liquidthrough said conduit, a valve operating arm, a movable coin controlledoperating member, means for normally locking said operating member in aninoperative position, said means being operative in the presence of acoin to release said operating member upon movement thereof, valveactuating means adapted to be engaged and moved by said operating meansand releasable after a predetermined movement thereof, said valveactuating means being adapted to depress said valve operating arm uponbeing released, means for moving said arm to its normal position, meansfor retarding the movement of said actuating arm to its normal position,the last named means ineluding a dash pot having a piston operativelyconnected with said valve actuating arm.

7. A coin routrolled liquid dispensing apparatus having a conduitadapted to carry a liquid, a valve controlling the flow of liquidthrough said conduit, a valve operating arm, a movable coin controlledoperating member, means for normally locking said operating member in aninoperative position, said means being operative in the presence of acoin to release said operating niember upon movement thereof, valveactuating means adapted to be engage-d and moved by said operatingmember and releasable after a predetermined movement thereof, said valveactuating means being adapted to depress said valve operating arm uponbeing released, means for returning said arm to its normal position,means for retarding the movement of said operating arm 'to its noriesmal position, the last named means including a dash pot having a pistonoperatively connected with said valve operating arm, and meansassociated with said dash pot for varying the period of operation ofsaid valve operating arm.

8. A. coin controlled liquid dispensing apparatus having a conduitadapted to carry a liquid, a valve controlling the flow of liquidthrough said conduit, a valve actuating arm for opening said valve. aWeighted lever connected to said arm for retaining the same in a normalposition, a pivoted cam carried by said arm, a movable coin controlledoperating member, means for normall;rv locking said operating member inan inoperative position. said means being operable in the presence of acoin to release said operating member upon movement thereof, a leveradapted to be engaged and moved by said operating member and releasableupon a predetermined movement thereof, means for returning said lever toa normal position upon release thereof whereby the same is premitted tocoact with said cam to depress said arm thereby opening said valve.

A coin controlled liquid dispensing apparatus having a conduit adaptedto carry a liquid, a valve controlling the flovv of liquid through saidconduit, a valve actuating arm for opening said valve, a pivoted camcarried by said arm, a movable coin controlled operating member, meansfor normally locking said operating member in an inoperative position,said means being operable in the presence of a coin to release saidoperating member upon movement thereof, a lever adapted to be engagedand moved by said operating member and releasable upon a predeterminedmovement thereof, means for returning said lever to a normal positionupon release thereof whereby the same is permitted to coact with saidcam to depress said arm thereby opening said valve, and meanscooperating With said arm to return the same to normal position afterthe same has been depressed whereby said valve is closed.

10. A coin controlled liquid dispensing apparatus having a conduitadapted to carry a liquid, a valve controlling the flow of liquidthrough said conduit, a valve actuating arm for opening said valve, apivoted cam carried by said arm, a movablel coin controlled operatingmember, means for normally locking said operating member in aninoperative position, said means being operable in the presence of acoin to release said operating member upon movement thereof. a leveradapted to be engaged and moved by said operating member and releasableupon a predetermined movement thereof, means for returning said lever toa normal position upon release thereof,

wherel'iy the same is permitted to coaet With said cam to depress saidarm thereby opening said valve, means cooperating with said arm toreturn the same to normal position after the same has been depressedwhereby said valve is closed, and means for varying the period ofoperation of said arm When being moved to close said Valve.

1l. A coin controlled liquid dispensing apparatus having a dispensinghead provided `with chambers, pipes leading to said chambers adapted tocarry dissimilar liquids, cup-shaped valves arranged Within saidchambers to control the floW of liquid from said pipes, a yoke adaptedto engage said valves, a valve actuating arm connected with said yoke, amovable coin controlled operating member. means for normally lockingsaid operating member in an inoperative position, means operable in thepresence of a coin to release said operating member upon movementthereof, a pivoted cam carried by said arm, a lever adapted to beengaged by said operating member upon movement thereof in a givendirection and disengaged therefrom after a predetermined movement ofsaid member, means for effecting a return of said lever to its normalposition upon disengagement from said operating member, said` leverbeing adapted to coact with said cam upon its return movement to depresssaid arm whereby said valves are opened.

12. A coin controlled liquid dispensing apparatus having a dispensinghead provided With chambers, pipes leading to said chambers adapted tocarry dissimilar liquids, cup-shaped valves arranged Within saidchambers to control the flow of liquid from said pipes, a yoke adaptedto engage said valves, a valve actuating arm, connected with said yoke,a movable coin controlled operating member, means for normally lockingsaid operating member in an inoperative position, means operable in thepresence of a coin to release said operating member' upon movementthereof, a pivoted cam carried by said arm, a lever adapted to beengaged by said operating member upon movement thereof in a givendirection and disengaged thereform after a predetermined movement ofsaid member, means for effecting a re turn of said lever to its normalposition upon disengagement from said operating member, said lever beingadapted to coact With said cam upon its return movement to depress saidarm Whereb;v said valves are opened, and means for returning said armafter depression to its' normal position whereby said valves are closed.

13. A coin controlled liquid dispensing apparatus having a dispensinghead provided With chambers, pipes leading to said chambers adapted tocarry dissimilar liquids, cup-shaped valves arranged Within saidchambers to control the. How oit liquid from said pipes, a yoke adaptedto engage said valves, a valve actuating arm connected with said yoke, amovable coin controlled operating member, means for normally lockingsaid operating member in an inoperative position, means operable in thepresence of a Coin to release said operatingl member upon movementthereof, a pivoted cam carried by said arm, a lever adapted to beengaged by said operating member upon movement thereof in a givendirection and disengaged therefrom after a predetermined movement ofsaid member, means for effecting a return of said lever to its normalposition upon disengagement from said operating member. said lever beingadapted to eoact with said cam upon its return movement to depress saidarm whereby said valves are opened. means for returning said arm afterdepression to its normal position whereby said valves are permitted toclose, and means for retarding the movement of said arm to its normalposition whereby said valves are retained open an appreciable length oftime.

i4. A coin controlled liquid dispensing apparatus having a dispensinghead provided with chambers. pipes leading to said chambers adapted toi'arrv dissimilar liquids, cup-shaped valves arranged within saidchambers to control the flow of liquid from said pipes, a yoke adaptedto engage said valves, a valve actuating arm fonnet-ted with said yoke,a movable coin controlled operating member, means for normally lockingsaid operating member in an inoperative position, means operable in thepresence of a coin to release said operating member upon movementthereof, a pivoted cam carried by said arm. a lever adapted to beengaged by said operating member upon movement thereof in a givendirection and disengaged therefrom after a predetermined movement ofsaid member` means for effecting a return of said lever to its normalposition upon disengagement from said operating member. said lever beingadapted to coaot with said cam upon its return movement to depress saidarm whereby said valves are opened, means for returning said arm afterdepression to its normal position whereby said valves are permitted toclose, means for retarding the movement of said arm to its normalposition whereby said valves are retained open an appreciable length oftime, and means for varying the period of operation of said arm in itsreturn movement to normal position.

l5. A coin controlled liquid dispensing apparatus having a dispensinghead provided with ehambers, pipes leading to said Chambers adapted tocarry dissimilar liquids, cup-shaped valves arranged within saidchambers to control the flow of liquid from said pipes. a yoke adaptedto engage said valves, a valve actuating arm connerted with said yoke, amovable coin controlled operating member, means for normally lockingsaid operating member in an inoperative position, means operable in thepresence of a coin to release said operating member upon movementthereof, a pivoted cam earried by said arm, a lever adapted to be engaged by said operating member upon movement thereof in a given directionand disengaged therefrom after a predetermined movement of said member,means for effecting a return of said lever to its normal position upondisengagement from said operating member. said lever being adapted toeoact with said cam upon its return movement to depress said arm wherebysaid valves are opened, means for returning said arm after depression toits normal position whereby said valves are flosed, means for 'retardingthe movement of said arm to its normal position whereby said valves areretained open an appreciable length of time, means for varying theperiod of operation of said arm in its return movement to normalposition, and means for returning said operating member to its normalposition independently of said means for returning said lever and saidarm to their respective normal positions.

In testimony whereof. I have aiixed my signature to this specification.

JOSEPH N. BURNG.

